Can you recommend some spicy dark romance novels?

The main characteristic is the presence of complex and often troubled characters. These characters usually have a past that haunts them, which adds to the dark aspect. Also, the relationships are highly passionate, with a lot of sexual tension, which is where the'spicy' part comes in. For example, in 'Fifty Shades of Grey', Christian Grey has a troubled past that affects his relationship with Anastasia Steele, and their interactions are full of intense passion.

One popular spicy historical romance novel is 'The Duke and I' by Julia Quinn. It's set in the Regency era and has a great mix of romance, drama, and a bit of spice in the relationship between the main characters.

One good spicy romance novel is 'The Hating Game' by Sally Thorne. It has a great dynamic between the two main characters with lots of witty banter and a steamy undercurrent of attraction. Another is 'Bared to You' by Sylvia Day. The relationship in this book is intense and passionate.

One popular lesbian spicy romance novel is 'Fingersmith' by Sarah Waters. It's a historical novel with a complex plot full of passion and intrigue. The relationship between the two main characters is deeply explored, and there are some very intense and romantic moments.

'Fingersmith' by Sarah Waters can also be considered. It's a historical novel with complex relationships and a good amount of romantic and tense moments between the female characters. The story is set in Victorian England and the plot twists keep you engaged throughout.

'Outlander' by Diana Gabaldon can be considered a spicy romance novel too. It combines time - travel, historical fiction, and a very passionate relationship between Claire and Jamie. Their love story is full of longing, adventure, and some rather hot and heavy scenes. The detailed historical backdrop makes the spicy elements even more interesting as it shows how love and passion can exist in different time periods.

Another one is 'Call Me by Your Name'. It beautifully captures the intense passion and longing between the two protagonists. The Italian setting adds to the overall allure, and the descriptions of their relationship are both tender and steamy.

'The Viscount Who Loved Me' is another excellent spicy regency romance novel. The relationship between the viscount and the female lead is complex and passionate. It shows the power dynamics and the propriety of the regency era while still delivering a hot romance.

A good choice could be 'The Bronze Horseman' by Paullina Simons. Although it's more set in Russia during a historical period, it has a similar level of passion. It tells the story of Tatiana and Alexander, and their love that endures through war and hardships, with elements of historical drama and intense romance.

One popular plus size spicy romance novel is 'The Wall of Winnipeg and Me' by Mariana Zapata. It has a great story with a plus - size female lead and a steamy relationship that develops over time.